System and method for managing batch fermentation in biofuel production. An optimizer executes a nonlinear multivariate predictive model of a batch fermentation process in accordance with an end of batch objective specifying a target end of batch biofuel concentration to determine an optimal batch trajectory...http://www.google.com/patents/US20080109100?utm_source=gb-gplus-sharePatent US20080109100 - MODEL PREDICTIVE CONTROL OF FERMENTATION IN BIOFUEL PRODUCTION